摘要
针对MO(MapObjects简称)环境下符号表现难的问题,以点状地物作为探讨对象,给出3种方法,从而解决各种形式下点状地物的标绘问题,同时依据R-Tree空间索引机制,建立动态空间索引来加快符号的绘制速度,同时将其方法应用到新版的天津市电子地图中,从而很好地解决此类问题.
Due to the problem that under MO（MapObjects short） environment the symbol is difficult to perform and show, this paper as a point feature on the subject, presented three methods to solve various forms under the spot feature messages, while based on space R-Tree indexing mechanism, establish a dynamic spatial index to accelerate symbol the rendering speed, while its methodology was applied to the new version of the electronic map in Tianjin, and it is a very good solution to such problems.
出处
《湖北大学学报（自然科学版）》
CAS
北大核心
2008年第2期154-157,共4页
Journal of Hubei University：Natural Science
基金
天津市电子地图资助
